CN2142247Y - Combination power supply using for communication network of countryside - Google Patents

Abstract

The utility model relates to a combination power supply using for communication networks of countryside, which is suitable for posts and telecommunication offices of the countryside. The utility model provides various power supply devices with different output voltage requirements for communication equipment, such as telephone exchanges, carriers, fax machines, printers, etc. A machine frame presents an upright or clothes closet type metal structure; a control chamber is arranged on the left side of the machine frame, and an accumulator chamber is arranged on the right side of the machine frame; a sealed accumulator without maintenance is used. Each side of the machine frame is divided into a plurality of frameworks by a baffle to be respectively used for placing the power supply control circuits, instrumentations and corresponding batteries of various equipment. The utility model has compact and novel structure, ground occupation area can be effectively saved, routine maintenance can be reduced, circuit control function is strong, and degree of automation is high.

Description

Combination power supply using for communication network of countryside

The utility model relates to a kind of integrated drive generator that is used for the rural area telecommunications network, that is to say, relates to a kind of suitable rural area post and telecommunications office and uses, can be simultaneously for switch, facsimile machine, carrier terminal equipment,, equipment such as printer provides the modular power supply of different output voltages.

On China soil vast in territory in the communications equipment room of dotted rural area post and telecommunications branch office, generally all be installed on telecommunication apparatus such as telephone exchange, carrier communication machine, facsimile machine, charging printer, stabilized voltage power supply, the supply power voltage that these equipment need is not quite similar.When power supply network has civil power, by civil power to each equipment feed; When civil power interrupts, promptly give above-mentioned various communication equipment power supply respectively, to guarantee the unblocked of communication line by the different voltage of various batteries outputs.In the past, many rural areas post and telecommunications branch office adopts open type automobile batteries or acid-proof flame proof battery as energy storage device mostly, use this battery to need regular accumulators adding distil water and regularly charge to it with charger, these work are by manually finishing, and the amount of labour is big; And charging modes is outmoded, backward, has acid gas to emit during charging outward, contaminated environment, and the user of service is healthy in harm, also influences the useful life of storage battery.Because, having the storage battery of multiple various combination all to tile to put various communication equipments and power supply to be mixed put, influence is carried out production strictly in line with rules and regulations.If be placed on separately in the room, take the machine room area of the fund of building a house and tens square metres again, production cost is improved.

The purpose of this utility model provides the integrated drive generator of multiple communication common carrier equipment in the post and telecommunications office of a kind of suitable rural area, its compact conformation, novelty, and floor space is little, and smoothness aesthetic in appearance, controlled function are strong.

The utility model is a kind of rural area telecommunications network that is used for; be switch; carrier terminal equipment; facsimile machine; communication equipments such as printer provide various differences to require the integrated drive generator of output voltage; include frame; alternating current steady voltage plug; different outage sources (UPS); the carrier terminal equipment power supply; exchanger power and storage battery; it is characterized in that: this frame is a metal structure; be vertical clothes closet pattern; by forming as the left side in control room with as right side two parts of battery chamber; wherein each side all becomes a plurality of sashes with barrier partitions again; place alternating current steady voltage plug respectively; uninterrupted power supply; the carrier terminal equipment power supply; switch stand-by power supply and corresponding batteries thereof, wherein the switch stand-by power supply is by this machine DC power supply; voltage stabilizing and warning circuit; equalizing charge and floating charge automatic switching circuit; AC detection and output control circuit and battery bottoming protective circuit are formed.

The utility model is placed in ground various different batteries group to original tiling and changes in the different shelves lattice that vertically pile up in rack, not only saves machine room area, change machine room looks, and, be convenient to administer and maintain.Storage battery all adopts import or homemade sealed, maintenance-free battery, has both save regular maintenance, has exempted environmental pollution again.The utility model has also adopted the very strong circuit structure of controlled function; make all operations of device; do not have when for example equalizing charge, floating charge power supply, power failure that breakpoint switches, overvoltage alarm, overcharge, cross all realization automations such as putting protection; both alleviated operating personnel's line service greatly, and also guaranteed the communication equipment safe and reliable operation and prolonged battery useful life.In a word, the utility model is to be fit to China vast rural area post and telecommunications branch office to guarantee the more satisfactory supply unit that communication equipment is opened.

Below in conjunction with accompanying drawing, specifically introduce the utility model.

Fig. 1 is a front of the present utility model front view.

Fig. 2 is the block diagram of switch stand-by power supply control circuit in the utility model.

Fig. 3 is the electrical schematic diagram of switch stand-by power supply control circuit in the utility model.

Among Fig. 1, the 1st, frame of the present utility model, the metal structure that it adopts angle steel and cold rolling sheet iron to make is made, be the vertical clothes closet pattern of splitting, the left side is the control room, the right side is the battery chamber, and each side all uses plate washer 2 to be separated into a plurality of sashes again, places the power supply and the corresponding batteries thereof of the various device that uses in the rural communication network respectively.Be respectively alternating current steady voltage plug 3, uninterrupted power supply 4 from top to bottom among this figure shown in the left side, the control instrument and the shift knob of carrier terminal equipment power supply 5 and exchanger power 6, place and the corresponding batteries of left side power supply on the right side.The alternating current steady voltage plug 3 here can be the burning voltage that the interior various power consumption equipments of machine room provide 220 volts of 3000～5000 volt-amperes/interchanges, uninterrupted power supply 4 can stop supplying charging printer or facsimile machine to work on 6 hours for 220 volts of alternating currents of inversion output behind the civil power.Carrier terminal equipment power supply 5 can be exported direct current for a long time and supply carrier terminal equipment work for 24 volts, can continue after the power failure to power 8 hours.Switch stand-by power supply 6 can be exported 48 volts of power supplys of direct current after power failure, work on more than 8 hours for switch.According to the model difference of switch, also can change the power supply that 60 volts of direct currents are provided into.The battery chamber on right side can select for use closed maintenance free accumulator 7 tandem compounds of 12 volts/90 ampere-hours to match use mutually with the power supply in left side and be placed in the corresponding shelves lattice.

Various power supplys in the utility model frame shelves lattice are not absolute fixing, can select corresponding power supply to carry out arbitrary combination according to the demand of user's calculator room equipment.Power supply in each layer shelves lattice is independent of each other, can not interfere with each other when breaking down yet, the end line of drawing power supply from each group all tandem is marked with mark on this plate to total terminal block of casing back, correctly be connected with the interior different communication equipment of machine room when using for the user.

Fig. 2 has shown the control circuit block diagram of switch stand-by power supply in this device.It is detected with output control circuit 14 and battery output discharge downscale protection circuit 15 by this machine DC power supply 11, voltage stabilizing and warning circuit 12, equalizing charge one floating charge automatic switching circuit 13, AC and forms.

Fig. 3 is the electrical schematic diagram of switch stand-by power supply control circuit.Now be described below respectively:

This machine DC power supply 11: DC bus-bar voltage is after transistor Q4, the pre-voltage stabilizing of voltage-stabiliser tube D1 (about 28 volts), by positive three-terminal voltage-stabilizing device U1(7812) 12 volts of reference voltages of output.B2 level of main circuit transformer is behind full-bridge D5, and the output two-way: the one tunnel through resistance R 9 to AC testing circuits, and another road is through diode D4 to U7(7812) export 12 volts on another road, give ICU4, U3 feed.The isolating diode D4 here is that the discharge that prevents C9, C10 filter capacitor influences the accuracy that AC detects.

The voltage stabilizing of main circuit and overvoltage warning circuit 12: form voltage stabilizing circuit by U2, transistor Q1, QA: 12 volts of voltages add to the inverting input of U2 as reference voltage after by R1, R2 dividing potential drop, its in-phase end provides comparative voltage by R3, R4, R5, R6 dividing potential drop, U2 output drives QA through Q1, realizes the voltage stabilizing of main circuit.Wherein C2 is the starting capacitance of start moment conducting high power valve Q4.Warning circuit is made up of U5, Q2, buzzer DZ; Because of U2 consistent with the inverting input level of U5, and the comparative level of the in-phase input end of U5 low slightly than U2 behind R4, so, U5 imports the voltage indifference no-output at two ends because of it at ordinary times, and after busbar voltage was higher than rated value owing to fault, its in-phase input end comparative voltage also increased, make U5 output high potential, drive the Q2 conducting, DZ buzzing news are rung, and play overvoltage alarm effect.

Equalizing charge and floating charge automatic switching circuit 13: form by the U3 that includes oscillator and 14 grades of frequency dividers, inverter U4 and transistor Q3.The external C5 of U3, R7, R8 form oscillator, behind inner frequency division, make an output L-H pulse (3 pin) in per 20 hours, and this pulse makes the blocking of oscillator through D2.And when powering up, 12 volts of voltage starting of oscillations after the 12 pin zero clearings of C15 to U3.At this moment, be output as low level, through the 12 pin input of inverter U4,11 pin output high potential makes transistor Q3 conducting, and at this moment, main voltage stabilizing is the equalizing charge state.Charge after 20 hours, 3 pin of U3 transfer high level to, and Q3 is ended, thereby the comparative voltage of U2 is improved, and main pressurizer voltage drops to floating charge state automatically.Owing to change lock, the situation of at once sending a telegram here again behind instantaneous power failure can and make U3 safeguard that the former floating charge state of main circuit is constant by the C9 discharge.

AC detects and output control circuit 14: form the AC testing circuit by elements such as photoelectrical coupler U6.The AC signal divides input 1,2 pin that are depressed into optocoupler U6 through transformer B2 and D5 full-bridge rectification and R9, R14, when the AC signal, and output 4, the 5 pin conductings of U6, during no AC signal, U6 ends.Adjust the transfer point that R9, R14 can select the optocoupler conducting, generally be selected in about 160 volts of civil powers.Output control circuit is made up of double switch, and a route amplifier U8, U9, U10 and transistor Q8, relay J A form.12 volts of voltages make reference voltage for the in-phase input end of U8, U9, U10 by R12, R13 dividing potential drop, when the AC signal, 4, the 5 pin conductings of optocoupler U6, the inverting input current potential of U10 is low, it is output as high level, and make U9 be output as low level, transistor Q8 ends, relay J A is failure to actuate, its moving contact open circuit, the main circuit no-output.When the AC signal stops or civil power when being low to moderate 160 volts, the course of work of foregoing circuit is just in time opposite, the moving contact closure of relay J A, and DC bus-bar voltage is exported to switch by relay.An other way switch be output by amplifier U8 through transistor Q7 to Q8 because C, E the two poles of the earth of transistor QB are in parallel with the moving contact of relay J A, can play the effect of accelerating the relay conversion speed and protecting its moving contact contact.

Battery discharge downscale protection circuit 15: when dc bus is battery discharging; partial pressure value by R10, R11 is compared with the inverting input reference voltage of amplifier U11; when battery tension drops to certain value; make the U11 output low level; make relay J A and Q8 open circuit, interrupt the output discharge, thereby up to the effect of protecting the battery discharge lower limit.

The utility model has been made model machine, during trying out in the post and telecommunications branch office of rural area, obtains user's favorable comment and welcome.

Claims (2)

1; a kind of rural area telecommunications network that is used for; be switch; carrier terminal equipment; facsimile machine; communication equipments such as printer provide various differences to require the integrated drive generator of output voltage; include frame; alternating current steady voltage plug; uninterrupted power supply (ups) Unity; the carrier terminal equipment power supply; exchanger power and storage battery; it is characterized in that: this frame is a metal structure; be vertical clothes closet pattern; by forming as the left side in control room with as right side two parts of battery chamber; wherein each side all is separated into a plurality of sashes with plate washer again; place alternating current steady voltage plug respectively; uninterrupted power supply; the carrier terminal equipment power supply; switch stand-by power supply and corresponding batteries thereof, wherein the switch stand-by power supply is by this machine DC power supply; voltage stabilizing and warning circuit; equalizing charge and floating charge automatic switching circuit; AC detection and output control circuit and battery output discharge downscale protection circuit are formed.

2, the integrated drive generator that is used for the rural area telecommunications network as claimed in claim 1 is characterized in that described batteries is a closed maintenance free accumulator.

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